calibration example data is out of date

[zhangming8]

calibration example data is out of date.

https://chingswy.github.io/easymocap-public-doc/quickstart/calibration/studio-dense.html
https://chingswy.github.io/easymocap-public-doc/quickstart/calibration/studio-sparse.html
https://chingswy.github.io/easymocap-public-doc/quickstart/calibration/wild-sparse.html